Pentagon Lays Out Ways to Slash Spending

Plans Outline Most Drastic Changes to Armed Forces in Generations

WASHINGTON—Pentagon plans for deep cuts across the U.S. armed forces would bring the most drastic changes in generations in the way the American military operates around the globe.

Defense Secretary Chuck Hagel on Wednesday laid out options for implementing the Pentagon's share of broad spending cuts known as the sequester, including shrinking the Army from 490,000 under current targets to a force as small as 380,000—far below even...